Turns on the derive_gid feature for sdcardfs. This was moved
under a mount flag in the kernel.
Test: If the derive_gid flag is supported, the first mount
should succeed. If the flag is not, the second should
succeed.
Bug: 63245673
Change-Id: If1c1bce13d14120732e420252cb5605d33ce7c40
Clang static analyzer worries that strcpy to a field may overwrites
other fields. Use snprintf() instead.
Test: built without seeing the warning.
Change-Id: I75d8edf1353b5d052fd14a954362bd0632c258fa
clang is the default compiler since Android nougat
Test: mma & verified it´s still build with clang
Change-Id: I34adaeef2f6558a09f26027271222bad94780507
Signed-off-by: Lennart Wieboldt <lennart.1997@gmx.de>
This will cause devices to default to sdcardfs if the kernel
supports it.
Test: Booted a wiped device, ensured sdcardfs was enabled
Change-Id: Ibce012b841b78d37ade668a38e91dca74a637867
Sdcardfs has been modified to use bind mounts
in place of three separate mounts. This lowers
resource usage, and removes a number of race
conditions around updates via differnt views.
Test: Run storage cts tests with sdcardfs enabled
Change-Id: Icdc196ba3d6f46d54d27ef91c01ffebcf81dd47e
We return the minor version number 15 to FUSE_INIT since we don't handle
BATCH_FORGET. Thus the kernel does not accept the latest size of
fuse_init_out. Instead we need to use FUSE_COMPAT_22_INIT_OUT_SIZE.
Previously the code unintentionally used FUSE_COMPAT_22_INIT_OUT_SIZE always
because we override the minor version out->minor to 15. Because sdcard.c shares
the buffer for |in| and |out|, it overrides the version number of in->minnor as
well.
The if closure in the previous code "if (in->minor <= 22)" was always true. The
CL removes the if closure to explicitly use FUSE_COMPAT_22_INIT_OUT_SIZE always.
Bug: 32779923
Test: Manually boot Android and check if the storage shows up in Settings app.
Change-Id: Ibbc50da7fb82be148acfc5f1a3d46fefbe211f9d
Sdcardfs has been modified to use bind mounts
in place of three separate mounts. This lowers
resource usage, and removes a number of race
conditions around updates via differnt views.
Test: Run storage cts tests with sdcardfs enabled
Change-Id: Icdc196ba3d6f46d54d27ef91c01ffebcf81dd47e
- Add TEMP_FAILURE_RETRY around all relevant system calls.
- Cleanup some of the read calls.
- Add error log messages when read/write calls do not actually read/write the
expected number of bytes.
- Add error messages for write failures in fuse_status/fuse_replay.
Test: Attached to the sdcard process and stepped through most of the modified
Test: code. Also, create/read/write/delete files in /storage/emulated/0
Test: directory.
Change-Id: I73e4c0db861960f4c0af1bf96b06cd61fa74be69
Instead default-initialize to 0. The third field, which is by
default padding, may be renamed and used in some implementations.
Test: m
Change-Id: Iaf0a2b1bf9615f11256c0500fa3ca98b09e34d15
A few changes got dropped along merge resolution. This adds them back
Affected CLs:
Ie188cb044be2ad87166f2d43c32a1f6b97660de0
Ibdb72ad16a1e6c3a01edcb03d003c42de7a03cd6
Change-Id: I1924f5a4bd7564ceaf9bb3a45b7fb7804b3619d7
Use a non yet maintainer reviewed kernel patch from QCOM that greatly
improves IO speed in case it is available from the device specific
kernel headers.
Bug: 24216004
Bug: 30222859
Change-Id: I4101d80082c9ad9d042dde5c620ddb309d193d52
"PRI{u,x}64" was not compiling on C++ because of macro expansions.
Implement DLOG the same way DCHECK is implemented in
<android-base/logging.h>, and mechanically replace the problematic
lines with C++ logging. Remaining TRACE() lines will be replaced in a
follow-up CL.
Bug: 30222003
Change-Id: I377a91722eb4c035093fc96b79438c4f638b9a45
Having CaseInsensitiveCompare use strcasecomp is not ideal, but other
solutions are not prettier.
Also, add a TODO to fix FUSE_TRACE, broken by the switch to C++.
Bug: 27147273
Change-Id: I0017c3a7d0254eb81abd128b97cd06c5ad0d1dff
Having so many copies of privilege-dropping code leads to errors.
De-duplicate this code and use Minijail for it.
Bug: 30156807
Change-Id: I36c85962b913a12efe5648a23cbacc5bcbb3853c
This gets rid of a bunch of "strerror(errno)" bits.
Will convert fuse.cpp after
https://android-review.googlesource.com/#/c/247780 lands.
Bug: 30110940
Change-Id: Iacefe5b6519b217ed687c709763fe5827b3b0b59
Fix string literals and cast void* appropriately. Alternatively, we
could switch some of the allocations to new/delete, but we would need
to make sure that none of those end up passed to other code that will
call free(3) on them.
Bug: 30110940
Change-Id: I6f39df65cd960930530e5a1f8420a28d50adc25d
sdcard.c is a *really* big file. This makes it hard to do things like
improving priv dropping or adding more sandboxing. Extract all
FUSE-related code to a separate unit, fuse.{h|c}, which exports only
two functions. Convert the rest of sdcard.c to C++ as sdcard.cpp.
fuse.c is kept as C (at least for now) since interacting with the FUSE
API is realistically easier from C.
Bug: 30110940
Change-Id: I188bfdc21c184742117e07539adb09090d4d747c
The previous false positive fix (df9c4a01) is enough to pass tests, and
it doesn't appear that there are any remaining issues.
Change-Id: Ib9812f1201ff0cd2ae8c8371737754fc328765b5
This allows inotify requests on FUSE to be alerted when any
other stacked filesystem would trigger an inotify for the
same file.
Bug: 23904372
Change-Id: I4289b38230c314432eaf2c0d20d4ccefc058f59e
An incorrect size was causing an unsigned value
to wrap, causing it to write past the end of
the buffer.
Bug: 28085658
Change-Id: Ie9625c729cca024d514ba2880ff97209d435a165
